Adjustable photographic mask



HJB-AUMGARTEL ADJUSTABLE .PHOTOGRAPHIC MASK.

APPLICATION FILED OCT..2|, I918.

Patented Oct. 3, 1922.

M iZn.

Patented Oct. 3, 1922.

HENRY BAUMGARTELOF CHICAGO, ILLINOIS.

ADJUSTABLE PHOTOGRAPHIC MASK.

Application filed October 21, 1918. Serial No. 259,001.

To aZZ 107mm it may concern:

Be it known that I, HENRY BAUMGARTEL, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Adjustable PhotographicMasks, of which the following is a full, clear, concise, and exactdescription, reference being had to the accompanying drawings, forming apart of this specification. 1

The invention relates to photographic masks, ordinarily used inphotography to rotect that portion of the sensitized paper beyond thepicture itself from the light rays during the printing of the picture,this portion being left blank or subsequently exposed under another maskhaving suitable border designs which protects the picture but exposesthat portion of the paper previously protected. p

The invention has among its various objects the production of a deviceof this character which may be quickly adjusted so that it is applicablefor use in connection with negatives of various sizes, and which mayalso be arranged to accommodate more than one negative at a time, eachof which will be separated from the others by a blank space producedbetween them by the mask. The invention results in the elimination ofthe necessity of providing a separate mask for each picture or set ofpictures, thus materially reducing the time and expense necessarilyconsumed by the present method.

The invention has as a further object the provision ofa means wherebythe proper positioning of the paper with respect to the negative isinsured, and has as a further object the production of an arrangement ofthis character which will hold the negative in its proper position withrelation to the glass of the printing machine. The invention has asa'further object the production of a device of this character, the crosssection or dimension of which will be comparatively thin so that thesame will not consume a great amount of space in the printing machine,which also has to receive the negative and the printing paper.

It is an added object of the invention to produce these and otheradvantages in a simple and expeditious manner, all of which will beexplained in detail and more readily understood when read in conjunctionwith the accompanying drawings, in which Fig. 1 is a plan view of theinvention; and

Fig. 2 is a section taken on line 22 of Fig. 1.

In the embodiment of the invention illustrated in the drawings, the sameis shown as being composed of a frame generally designated 10 and themovable strips 11-11 and l212 these strips being movable with respect tothe frame and with respect to each other. The frame 10 and the stripswill be composed of any material, such as fibre, hard rubber, metal,celluloid, or other similar material which will prevent the penetrationof light rays, and also be impervious to dampness and water, whichinsures the strips against buckling The frame 10 is of any suitablewidth, that portion between the innermost edges thereof providing therectangular opening 13, the size of which. may be varied by manipulatingthe strips 11-11 and 12-12% which are substantially of the I same widthas the frame 10, so that when they are moved to their farthest positionoutwardly they will expose the entire opening 13. The outer edge of theframe 10 is provided with a head 14 which adds to the rigidity of theframe and serves as a guide for the strips, the ends of which areslidably secured to the frame in any suitable manner.

The particular structure resorted to in this instance for adjustablysecuring the strips in position with relation to the frame consists ofthe spring clips 15 which ride upon the bead 14E, they being suitablysecured to the opposite ends of the strips 11-1? and 1212"-. Byarranging the strips so that they may be adjusted with relation to theframe and relatively to each other various sized openings may beproduced between the inner edges of these strips, the strips themselvesbeing of a width sufiicient to produce the desired margin upon thepaper, although the dimension of these strips may be varied to suitvarious contingencies which may arise. It can readily be seen that allof the strips need not be manipulated each time the size of the openingis to be varied, as the strips such as 11 and 12 may be set so that theybear a fixed relation to each other, thus demanding only that the strips11 and 12 be moved, as indicated in dotted. lines in Fig. 1.

To assist the user to quickly and accurately position these strips sothat the opening between them will result in a certain prescribed area,the frame 10 is provided with indicia 171'T which are provided upon foursides of the frame and assist the user to quickly determine thedimension of the opening between the strips when same are moved relativeto the frame. The strips such as 1111' are also provided with suitablemarkings 18. These aid the operator to position the sensitized paper sothat it will square with the opening between the strips, and also serveto assist or guide the user to correspondingly arrange abutments uponthe mask having the border, so as to cause both exposures to registerwith each other in double printing.

From the foregoing explanation of the structure of the invention it canreadily be seen that the strips 11-11 and 12-12 may be moved relativelyto each other and with respect to the frame, so as to either expose theentire opening 13 or partially close it, also that these strips may bepositioned so that openings of various sizes will result between thestrips and the frame.

Having thus described one embodiment of my invention, it is obvious thatmodifications may be resorted to without departing from the spirit ofthe appended claims.

What I claim is:

1. In a photographic mask the combination of a rectangular frameconstructed to permit it to be arranged in a printing frame,

a plurality of independently movable flexible strips extendingtransversely across the opening of the first mentioned frame and havingtheir opposite ends secured to the frame, spring elements movable withthe strips for securing the strips to the frame and permitting thestrips to be moved with relation to said frame, indicia, provided uponthe first mentioned frame and arranged to cooperate with the strips todetermine the dimension of the opening between said strips and indiciaprovided upon one of said strips for squaring the paper to be printedwith the opening produced between said strips.

2. In a photographic mask the combination of a rectangular frameconstructed to permit it to be arranged in a printing frame, a pluralityof independently movable flexible strips extending transversely acrossthe opening of the first mentioned frame and having their opposite endssecured to the frame, spring elements movable with the strips forsecuring the strips to the frame and permitting the strips to be movedwith relation to said frame. indicia provided upon the first mentionedframe and arranged to cooperate with the strips to determine thedimension of the opening between said strips, indicia provided upon apair of said strips which are parallel to each other said indiciaproviding a means for squaring the paper to be printed with the openingbetween said strips.

In witness whereof, I hereunto subscribe my name this 30th day ofSeptember, A. D

HENRY BAUMGARTEL.

